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The use of a dynamic hydrogen electrode as an electrochemical tool to evaluate plasma activated carbon as electrocatalyst support for direct methanol fuel cell

Carmo, Marcelo and Roepke, Thorsten and Scheiba, Frieder and Roth, Christina and Moeller, Stephan and Fuess, Hartmut and Poco, Joao G. R. and Linardi, Marcelo (2009):
The use of a dynamic hydrogen electrode as an electrochemical tool to evaluate plasma activated carbon as electrocatalyst support for direct methanol fuel cell.
In: Materials Research Bulletin, 44 (1), Elsevier Science Publishing Company, pp. 51-56, ISSN 00255408,
[Online-Edition: http://dx.doi.org/10.1016/j.materresbull.2008.04.007],
[Article]

Abstract

The objectives of this study were to functionalize the carbon black surface by chemically introducing oxygenated groups using plasma technology. This should enable a better interaction of the carbon support with the metallic catalyst nanoparticles, hindering posterior support particle agglomeration and preventing loss of active surface. PtRu/C nanoparticles were anchored on the carbon supports by the impregnation method and direct reduction with hydrazine. Physical characterization of the materials was carried out using energy dispersive X-ray analysis and transmission electron microscopy. The screen printing technique was used to produce membrane electrode assemblies for single cell tests in methanol/air (DMFC). Tests were carried out using the dynamic hydrogen electrode as an electrochemical tool to evaluate the anode and cathode behavior separately.

Item Type: Article
Erschienen: 2009
Creators: Carmo, Marcelo and Roepke, Thorsten and Scheiba, Frieder and Roth, Christina and Moeller, Stephan and Fuess, Hartmut and Poco, Joao G. R. and Linardi, Marcelo
Title: The use of a dynamic hydrogen electrode as an electrochemical tool to evaluate plasma activated carbon as electrocatalyst support for direct methanol fuel cell
Language: English
Abstract:

The objectives of this study were to functionalize the carbon black surface by chemically introducing oxygenated groups using plasma technology. This should enable a better interaction of the carbon support with the metallic catalyst nanoparticles, hindering posterior support particle agglomeration and preventing loss of active surface. PtRu/C nanoparticles were anchored on the carbon supports by the impregnation method and direct reduction with hydrazine. Physical characterization of the materials was carried out using energy dispersive X-ray analysis and transmission electron microscopy. The screen printing technique was used to produce membrane electrode assemblies for single cell tests in methanol/air (DMFC). Tests were carried out using the dynamic hydrogen electrode as an electrochemical tool to evaluate the anode and cathode behavior separately.

Journal or Publication Title: Materials Research Bulletin
Volume: 44
Number: 1
Publisher: Elsevier Science Publishing Company
Uncontrolled Keywords: Microporous materials, Nanostructures, X-ray diffraction, Electrochemical properties
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Erneuerbare Energien
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 22 Feb 2013 09:00
Official URL: http://dx.doi.org/10.1016/j.materresbull.2008.04.007
Identification Number: doi:10.1016/j.materresbull.2008.04.007
Funders: The authors thank the “Coordenadoria de Aperfeicoamento Pessoal (CAPES)”,, the “Deutsche Akademische Austauschdienst (DAAD)”,, the Hydrogen Institute of Applied Technologies (HIAT) gGmbH,, the “Technische Universität Darmstadt”, the “Instituto de Pesquisas Tecnológicas do Estado de São Paulo - IPT”,, the “Instituto de Pesquisas Energéticas e Nucleares (IPEN)”.
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